133100221009 has 12 divisors (see below), whose sum is σ = 154853211684. Its totient is φ = 114069441024.

The previous prime is 133100221003. The next prime is 133100221031. The reversal of 133100221009 is 900122001331.

It can be written as a sum of positive squares in 2 ways, for example, as 114027782400 + 19072438609 = 337680^2 + 138103^2 .

It is not a de Polignac number, because 133100221009 - 2²¹ = 133098123857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133100221003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153337 + ... + 538249.

It is an arithmetic number, because the mean of its divisors is an integer number (12904434307).

Almost surely, 2^133100221009 is an apocalyptic number.

It is an amenable number.

133100221009 is a deficient number, since it is larger than the sum of its proper divisors (21752990675).

133100221009 is an equidigital number, since it uses as much as digits as its factorization.

133100221009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391984 (or 391977 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 133100221009 in words is "one hundred thirty-three billion, one hundred million, two hundred twenty-one thousand, nine".